/Engine/Plugins/Runtime/MassEntity/Source/MassEntityTestSuite/Public/MassEntityTestTypes.h
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UMassTestProcessorBase : public [UMassProcessor](API\Plugins\MassEntity\UMassProcessor)
FMassEntityQuer...
EntityQuery
Public on purpose, this is a test processor, no worries about access
FExecutionFunct...
ExecutionFunction
FMassExecuteFun...
ForEachEntityChunkExecutionFunction
Bydefault ExecutionFunction is configured to pass this function over to EntityQuery.ForEachEntityChunk call.